<template>
  <div class="app-container">
    <div class="head-container flex-center" style="border-bottom: 1px solid #ddd;">
      <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
          <el-breadcrumb-item>菜单管理</el-breadcrumb-item>
        </el-breadcrumb>
      </div>
      <div style="text-align: right">
        <el-button type="primary"
                   plain
                   size="small"
                   v-has-permi="['system:menu:insert']"
                   @click="handleAdd">新增菜单</el-button>
      </div>
    </div>
    <div class="body-container">
      <el-form :model="queryParams"
               ref="queryForm"
               class="queryForm"
               :inline="true">
        <el-form-item label="菜单名称：" prop="menuName">
          <el-input v-model="queryParams.title"
                    placeholder="请输入菜单名称"
                    clearable
                    size="small"
                    @input="getList" />
        </el-form-item>
      </el-form>
      <el-table v-loading="loading"
                :data="menuList"
                border
                row-key="menuCode"
                :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
        <el-table-column prop="title"
                         label="菜单名称"
                         width="180"
                         :show-overflow-tooltip="true" />
        <el-table-column prop="menuCode"
                         width="120"
                         label="菜单编码" />
        <el-table-column prop="icon"
                         label="图标"
                         width="120">
          <template slot-scope="scope">
            <svg-icon :icon-class="scope.row.icon" />
          </template>
        </el-table-column>
        <el-table-column prop="order"
                         width="120"
                         label="排序" />
        <el-table-column prop="permission"
                         label="权限标识"
                         width="250"
                         :show-overflow-tooltip="true" />
        <el-table-column prop="component"
                         label="组件路径"
                         width="250"
                         :show-overflow-tooltip="true" />
        <el-table-column prop="status"
                         label="状态"
                         width="120"
                         :formatter="statusFormat" />
        <el-table-column label="创建时间"
                         prop="createTime"
                         width="220"
                         :formatter="row => dateFormatter(row)" />
        <el-table-column label="操作"
                         class-name="small-padding fixed-width">
          <template slot-scope="scope">
            <el-button size="small"
                       type="success"
                       plain
                       v-has-permi="['system:menu:insert']"
                       @click="handleAdd(scope.row)">新增</el-button>
            <el-button size="small"
                       type="primary"
                       plain
                       v-has-permi="['system:menu:update']"
                       @click="handleUpdate(scope.row)">编辑</el-button>
            <el-button size="small"
                       type="danger"
                       plain
                       v-has-permi="['system:menu:delete']"
                       @click="handleDelete(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

    </div>

    <!-- 添加或修改菜单对话框 -->
    <el-dialog :title="title"
               :visible.sync="open"
               :close-on-click-modal="false"
               width="680px"
               append-to-body>
      <el-form ref="form"
               :model="form"
               :rules="rules"
               label-width="110px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="上级菜单：" prop="parentCode">
              <treeselect v-model="form.parentCode"
                          :options="menuOptions"
                          :normalizer="normalizer"
                          :show-count="true"
                          placeholder="选择上级菜单" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="菜单编码：" prop="menuCode">
              <el-input v-model="form.menuCode"
                        placeholder="请输入菜单编码" />
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="菜单类型：" prop="menuType">
              <el-radio-group v-model="form.menuType">
                <el-radio label="M">目录</el-radio>
                <el-radio label="C">菜单</el-radio>
                <el-radio label="F">按钮</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item v-if="form.menuType != 'F'" label="菜单图标：">
              <el-popover
                placement="bottom-start"
                width="460"
                trigger="click"
                @show="$refs['iconSelect'].reset()"
              >
                <IconSelect ref="iconSelect" @selected="selected" />
                <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" readonly>
                  <svg-icon
                    v-if="form.icon"
                    slot="prefix"
                    :icon-class="form.icon"
                    class="el-input__icon"
                    style="height: 32px;width: 16px"
                  />
                  <i v-else slot="prefix" class="el-icon-search el-input__icon" />
                </el-input>
              </el-popover>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="菜单名称：" prop="title">
              <el-input v-model="form.title" placeholder="请输入菜单名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="显示排序：" prop="order">
              <el-input-number v-model="form.order" controls-position="right" :min="0" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.menuType != 'F'">
              <span slot="label">
                <el-tooltip content="选择是外链则路由地址需要以`http(s)://`开头" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                是否外链：
              </span>
              <el-radio-group v-model="form.isFrame">
                <el-radio label="1">是</el-radio>
                <el-radio label="0">否</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.menuType != 'F'" prop="path">
              <span slot="label">
                <el-tooltip content="访问的路由地址，如：`user`，如外网地址需内链访问则以`http(s)://`开头" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                路由地址：
              </span>
              <el-input v-model="form.path" placeholder="请输入路由地址" />
            </el-form-item>
          </el-col>
          <el-col :span="12" v-if="form.menuType == 'C'">
            <el-form-item prop="component">
              <span slot="label">
                <el-tooltip content="访问的组件路径，如：`system/user/index`，默认在`views`目录下" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                组件路径：
              </span>
              <el-input v-model="form.component" placeholder="请输入组件路径" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.menuType != 'M'">
              <el-input v-model="form.permission" placeholder="请输入权限标识" maxlength="100" />
              <span slot="label">
                <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(`@ss.hasPermi('system:user:list')`)" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                权限字符：
              </span>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.menuType != 'F'">
              <span slot="label">
                <el-tooltip content="选择隐藏则路由将不会出现在侧边栏，但仍然可以访问" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                显示状态：
              </span>
              <el-radio-group v-model="form.visible">
                <el-radio
                  v-for="dict in visibleOptions"
                  :key="dict.dictValue"
                  :label="dict.dictValue"
                >{{dict.dictLabel}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.menuType != 'F'">
              <span slot="label">
                <el-tooltip content="选择停用则路由将不会出现在侧边栏，也不能被访问" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                菜单状态：
              </span>
              <el-radio-group v-model="form.status">
                <el-radio
                  v-for="dict in statusOptions"
                  :key="dict.dictValue"
                  :label="dict.dictValue"
                >{{dict.dictLabel}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.menuType == 'C'">
              <span slot="label">
                <el-tooltip content="选择是则会被`keep-alive`缓存，需要匹配组件的`name`和地址保持一致" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                是否缓存：
              </span>
              <el-radio-group v-model="form.isCache">
                <el-radio label="1">缓存</el-radio>
                <el-radio label="0">不缓存</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer"
           class="dialog-footer">
        <el-button type="primary"
                   @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listMenu, getMenu, delMenu, addMenu, updateMenu } from "@/api/system/menu"
import Treeselect from "@riophae/vue-treeselect"
import "@riophae/vue-treeselect/dist/vue-treeselect.css"
import IconSelect from "@/components/IconSelect"

export default {
  name: "Menu",
  components: { Treeselect, IconSelect },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 菜单表格树数据
      menuList: [],
      // 菜单树选项
      menuOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 显示状态数据字典
      visibleOptions: [],
      // 菜单状态数据字典
      statusOptions: [],
      // 查询参数
      queryParams: {
        title: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        menuCode: [
          { required: true, message: "菜单编码不能为空", trigger: "blur" }
        ],
        menuName: [
          { required: true, message: "菜单名称不能为空", trigger: "blur" }
        ],
        order: [
          { required: true, message: "菜单顺序不能为空", trigger: "blur" }
        ],
        path: [
          { required: true, message: "路由地址不能为空", trigger: "blur" }
        ]
      }
    }
  },
  created() {
    this.getList()
    this.getDicts("sys_show_hide").then(response => {
      this.visibleOptions = response.data
    })
    this.getDicts("sys_normal_disable").then(response => {
      this.statusOptions = response.data
    })
  },
  methods: {
    // 选择图标
    selected(name) {
      this.form.icon = name
    },
    /** 查询菜单列表 */
    getList() {
      this.loading = true
      listMenu(this.queryParams).then(response => {
        this.menuList = this.handleTree(response.data, "menuCode", "parentCode")
        this.loading = false
      })
    },
    /** 转换菜单数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.menuCode,
        label: '[' + node.menuCode + '] ' + node.title,
        children: node.children
      }
    },
    /** 查询菜单下拉树结构 */
    getTreeselect() {
      listMenu().then(response => {
        this.menuOptions = []
        const menu = { menuCode: 0, title: '主类目', children: [] }
        menu.children = this.handleTree(response.data, "menuCode", "parentCode")
        this.menuOptions.push(menu)
      })
    },
    // 显示状态字典翻译
    visibleFormat(row, column) {
      if (row.menuType == "F") {
        return ""
      }
      return this.selectDictLabel(this.visibleOptions, row.visible)
    },
    // 菜单状态字典翻译
    statusFormat(row, column) {
      if (row.menuType == "F") {
        return ""
      }
      return this.selectDictLabel(this.statusOptions, row.status)
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        menuId: undefined,
        parentId: 0,
        menuCode: undefined,
        menuName: undefined,
        icon: undefined,
        menuType: "M",
        order: 1,
        isFrame: "0",
        isCache: "0",
        visible: "1",
        status: "1"
      }
      this.resetForm("form")
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset()
      this.getTreeselect()
      if (row != null && row.menuCode) {
        this.form.parentCode = row.menuCode
      } else {
        this.form.parentCode = 0
      }
      this.open = true
      this.title = "添加菜单"
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      this.getTreeselect()
      getMenu(row.menuCode).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改菜单"
      })
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form._id != undefined) {
            updateMenu(this.form).then(response => {
              this.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addMenu(this.form).then(response => {
              this.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$confirm('是否确认删除菜单名称为' + row.title + '"的数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return delMenu(row.menuCode)
        }).then(() => {
          this.getList()
          this.msgSuccess("删除成功")
        }).catch(() => {})
    }
  }
}
</script>

<style lang="scss">
  .queryForm {
    .el-form-item {
      margin-bottom: 10px;
    }
  }
</style>
